| Name | CVE-2023-48733 |
| Description | An insecure default to allow UEFI Shell in EDK2 was left enabled in Ubuntu's EDK2. This allows an OS-resident attacker to bypass Secure Boot. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-5624-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| edk2 (PTS) | jessie/non-free | 0~20131112.2590861a-3 | vulnerable |
| stretch (security), stretch (lts), stretch | 0~20161202.7bbe0b3e-1+deb9u2 | vulnerable |
| buster | 0~20181115.85588389-3+deb10u3 | vulnerable |
| bullseye | 2020.11-2+deb11u1 | vulnerable |
| bullseye (security) | 2020.11-2+deb11u2 | fixed |
| bookworm | 2022.11-6 | vulnerable |
| bookworm (security) | 2022.11-6+deb12u1 | fixed |
| sid, trixie | 2024.02-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| edk2 | source | jessie | (unfixed) | end-of-life | | |
| edk2 | source | stretch | (unfixed) | end-of-life | | |
| edk2 | source | bullseye | 2020.11-2+deb11u2 | | DSA-5624-1 | |
| edk2 | source | bookworm | 2022.11-6+deb12u1 | | DSA-5624-1 | |
| edk2 | source | (unstable) | 2023.11-7 | | | |
Notes
https://www.openwall.com/lists/oss-security/2024/02/14/4
https://bugs.launchpad.net/ubuntu/+source/edk2/+bug/2040137